MyBatisPlus (twenty-two) code generator

scenes to be used

Use the code generator to automatically generate the corresponding Entity, Mapper, Service, and Controller based on the database table.

code

rely

Two dependencies:

Generator dependencies
Template dependency

        <dependency>
            <groupId>com.baomidou</groupId>
            <artifactId>mybatis-plus-generator</artifactId>
            <version>3.5.3.2</version>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-freemarker</artifactId>
        </dependency>

generator code

package com.example.db.mybatisplus;

import com.baomidou.mybatisplus.annotation.FieldFill;
import com.baomidou.mybatisplus.generator.FastAutoGenerator;
import com.baomidou.mybatisplus.generator.config.OutputFile;
import com.baomidou.mybatisplus.generator.config.rules.DbColumnType;
import com.baomidou.mybatisplus.generator.engine.FreemarkerTemplateEngine;
import com.baomidou.mybatisplus.generator.fill.Column;

import java.sql.Types;
import java.util.Collections;

public class AutoGenerator {
    
    
    public static void main(String[] args) {
    
    
        String url = "jdbc:mysql://localhost:3306/mybatisplus?serverTimeZone=UTC&characterEncoding=utf8&useUnicode=true&useSSL=false&allowPublicKeyRetrieval=true";
        FastAutoGenerator.create(url, "root", "password")
                .globalConfig(builder -> {
    
    
                    builder.author("宋冠巡") // 设置作者
//                            .enableSwagger() // 开启 swagger 模式
                            .outputDir("E://mybatis-plus/"); // 指定输出目录
                })
                .dataSourceConfig(builder -> builder.typeConvertHandler((globalConfig, typeRegistry, metaInfo) -> {
    
    
                    int typeCode = metaInfo.getJdbcType().TYPE_CODE;
                    if (typeCode == Types.SMALLINT) {
    
    
                        // 自定义类型转换
                        return DbColumnType.INTEGER;
                    }
                    return typeRegistry.getColumnType(metaInfo);
                }))
                .packageConfig(builder -> {
    
    
                    builder.parent("com.example.db") // 设置父包名
                            .moduleName("mybatisplus") // 设置父包模块名
                            .pathInfo(Collections.singletonMap(OutputFile.xml, "E://mybatis-plus/")); // 设置mapperXml生成路径
                })
                .strategyConfig(builder -> {
    
    
                    builder.entityBuilder()
                            .formatFileName("%sEntity")
//                            .superClass("com.example.db.BaseEntity")
//                            .addSuperEntityColumns("id", "create_time", "update_time")
                            .enableLombok()
                            .disableSerialVersionUID()
                            .logicDeleteColumnName("deleted")
                            .versionColumnName("version")
                            .addTableFills(new Column("create_time", FieldFill.INSERT))
                            .addTableFills(new Column("update_time", FieldFill.INSERT_UPDATE));
                    builder.serviceBuilder()
                            .formatServiceFileName("%sService");
                    builder.addInclude("tb_user") // 设置需要生成的表名
                            .addTablePrefix("tb_"); // 设置过滤表前缀
                })
                .templateEngine(new FreemarkerTemplateEngine()) // 使用Freemarker引擎模板，默认的是Velocity引擎模板
                .execute();
    }
}

Effect

Copy the generated code to the project.
After MapperScan is configured, it can run normally.
Note: entity The default lombok used is @Getter @Setter, which needs to be manually changed to @Data.

Generate code examples

Insert image description here

Example after putting into project